Antibacterial activity of crude ethanolic extracts of pummelo [Citrus maxima (Burm.) Merr. ] on Listeria monocytogenes and Staphylococcus aureus

作者：Barrion Aimee Sheree A^*; Mabesa Reynaldo C; Dizon Erlinda T; Hurtada Wilma A

来源：Asia Life Sciences, 2013, 22(2): 503-514.

• pummel
• Citrus maxima
• pericarp
• mesocarp
• segment membrane
• antibacterial activity
• cup cylinder technique
• Listeria monocytogenes
• Staphylococcus aureus
• ethanolic extract

The antibacterial activity of the ethanol extracts of the pericarp, mesocarp and segment membrane of the pummelo [Citrus maxima (Burm.) Merr.] fruit against Listeria monocytogenes and Staphylococcus aureus was assessed by measuring inhibition zones using the cup cylinder techniques. Inhibition zones were significantly different (p < 0.05) based on the fruit material extracted and extract concentration. Among the fruit extracts, the pericarp extract displayed the highest antimicrobial effect with mean zone of inhibition of 9.90 and 15.25 mm for S. aureus and L. monocytogenes, respectively at 100% concentration. The mean zone of inhibition of 8.60 mm for S. aureus was gathered from both the mesocarp and segment membrane extracts at 100% concentration while the growth of L. monocytogenes was inhibited more by the mesocarp extract (13.95 mm) than the segment membrane extract (12.75 mm). This study provides evidence that pummelo can be a potential source of natural antimicrobial and suggests the possibility of utilizing it to organically preserve food items.

• 出版日期2013-12